Question

c₄h₄: blank g/mol
c₁₃h₂₀o₂: blank g/mol

Explanation:

Step1: Determine atomic masses

Atomic mass of C is 12 g/mol, H is 1 g/mol and O is 16 g/mol

Step2: Calculate molar - mass of \(C_4H_4\)

\[M_{C_4H_4}=4\times12 + 4\times1=48 + 4=52\ g/mol\]

Step3: Calculate molar - mass of \(C_{13}H_{20}O_2\)

\[M_{C_{13}H_{20}O_2}=13\times12+20\times1 + 2\times16=156+20 + 32=208\ g/mol\]

Answer:

For \(C_4H_4\): 52 g/mol; For \(C_{13}H_{20}O_2\): 208 g/mol